I am a Vivoactive HR user and will be buying the Vivoactive 4 soon. The always on display is indispensable, as is the battery life and SpO2 monitoring; Garmin is gold. I've tried Fitbit, Vivosmart 4, and AW4 but the Garmin is what I feel makes the best tradeoffs between functionality, usability, and quality plus they have great customer service. Edit0: fixed model names - darn Garmin with its meaningless model names.
